Car-roof.



W; n. THOMPSON & D. w. HAWKSWORTH. GAR ROOF.

APPLIGATION FILED JUNE 11, 1910.

E j J MLL H H@T Wivzaws as [972 222 fans WFZ-fzam.fl. fiemps0n 06 r Jazz 7Q Zffflawx sworffi WTED WILLIAM D. THOMPSON AND DAVID W. HAWKSW'ORTH, OF DETROIT, MICHIGAN, ASSIGNORS TO HUTCHINS CAR ROOFING COMPAHJY, OF DETROIT, MICHIGAN, A

CORPORATION OF MICHIGAN.

GAR-ROOF.

roent en.

a section on line mw, Fig. 1.

It is the object of the invention to obtain a comparatively rigid. roof structure of suiiieient strength to Withstand the strain tending toward distortion.

It is a further ob ect to limit the depth of the roof structure so as to provide the .maXimum space within the car, with proper clearance oi the roof from outside structures. As shown the roof is composed of a series of carlines A of 'i" shaped cross section, these are secured to the caves of the car by suitable means such as a U-shaped bracket B riveted at the top to the flanges of the "i andat the bottom to the angle beam C, forming the side plate of the ear. -Between these carlines are arranged roofing plates D having upstanding flanges E which abut against the web of the carlines and are secured theretoby rivets F.

The structure described is one possessing great strength and rigidity, as the roofing Specification of Letters Patent.

plates When riveted to the "i" shaped carlines, produce a truss having an I beam section, at the same time'the T forms a Weather guard for the joints between the flanges E and the Web of the beam.

What We claim as our invention is:

1. In a car roof a'metallic carline of T shaped cross section, roofing plates extending between said carline and having upstanding flanges, the fianges of adjacent sheets being positioned adjacent the dependingweh of the carline and rigidly secured thereto constituting a truss of lt-beain section, said carline being positioned so that its integral head forms a Weather guard for the joint the I-beam section.

2. In a car roof comprising roofing sheets hating upstanding flanges, metallic carlines oi T-shaped cross section having the vertical portion depending between said upstanding flanges and rigidly secured thereto, constituting a truss having an iI-bearn section, the uppe' head of which forms a Weather guard for the joint.

8. A car root comprising a roonng plate having upstanding flanges, a carline of "i"- shaped section having a stem portion extending between said upstanding flanges and rigidly secured thereto, whereby said plates and beams together form a truss.

in testimony whereof We afiix our signatures in presence of two witnesses;

WILLEAM D. THOMPSON. DAVID W'JHAWKSNORTH. Witnesses W. J. 'BELKNAP, James P. BARRY.

Patented Mar. ltd, 191%. Application filed June 11, 1910. Eerial Jo. 566,388. 

